摘要：Although the world in 2020 is suffering from the COVID-19 pandemic,developments in bio-design and manufacturing(BDM)have not *** have selected the most exciting progress in this flourishing area throughout 2020 from the three-dimensional(3D)bioprinting of different functional micro-organoids including kidneys to the manufacture of 3D tissues in the infinite *** technical breakthroughs have been seen in this area including noninvasive in vivo 3D bioprinting,intravital 3D bioprinting,single-cell printing,and rapid *** biomedical applications including human blood–brain barrier platforms,the noninvasive treatment of type 2 diabetes(T2D),and corpus cavernosa reconstructions have further benefited medical care development and our overall quality of life.

摘要：This paper studied the impact resistance of 3D integrated cellular woven composite panel under persudo-static impact, comprised the test result with property of typical 3D woven composites, analyzed some parameters that maybe affect composites＇ impact resistance and at last used SEM to observe the damage process and mechanism of samples. The result shows that the impact resistance of 3D integrated cellular woven composites is much better than the performance of typical 3D woven composites; it is an active method to improve the impact resistance of composites that developing preform with cellular on the basis of typical 3D woven structure; for different 3D integrated cellular woven structure, the value of absorbed-energy is increasing with the hollow percentage; tiny deformatlen will not emerge on samples until the acting force gets to 85% of the maximum; similar with typical 3D woven composites, the delaminated phenomenon of 3D integrated cellular woven composites is also unapparent during impact process.

摘要：The outbreak of COVID-19 in December 2019 has exerted a wide and everlasting impact on the world,which has also influenced education *** adjustment of objective learning environment during the COVID-19 pandemic makes the influence of non-intellectual factors on college students worthy of investigation,research and *** on this,we have launched a questionnaire survey on 500 college students who have witnessed the pandemic,and referred to related literature,network documents,news reports,contrast and analysis of college students’non-intelligence factors before and after the outbreak of the different levels of change,summing up some new measures to promote the development of college students’non-intelligence factors under the COVID-19 outbreak for online learning and autonomous learning.

摘要：In the face of various problems in the current art education, the targeted reform is very important. This reform can be embarked from the folk art handed down from the folk. In the classrooms, we should let the students contact the traditional arts and crafts, so that they know more about arts. In the history of China＇s bright and colorful folk arts, there flash numerous art forms, including the facial makeup art and culture, the shadow play art and culture, the paper-cut art and culture, and the kite drawing art and culture, and so on. These are the unique arts only of our nation with five thousand years of the development, and we need to well integrate them into the current art education, so as to form the unique system of the art education. This can not only play the role of inheriting the traditional Chinese cultures, but also can well arouse the children＇s interest in arts and their art creativity.

摘要：＂Design and Build＂ procurement method has been in use in Nigeria and this method has been latent with a lot of risks. This study intends to identify the risk inherent in ＂Design and Build＂ and also to evaluate the impact of the identified risks on project performance. A descriptive research survey is undertaken for this study. Snowballing sampling technique was used via the use of questionnaires. Population of the study includes contracting organizations, consultants and clients＇ organizations that are recently involved in ＂Design and Build＂ projects. A total of 39 questionnaires were distributed and 27 were returned and used for the analysis. Statistical Package for Social Sciences was used for analyzing the data collected. Descriptive statistical tool of mean item score was employed for the analysis. The results show that the most prominent risk is change in quantity/scope of work in terms of cost related risk while in terms of time related risks the most prominent risk is design changes. Errors and omissions during construction are the risks prominent in terms of quality. In conclusion, ＂Design and Build＂ procurement has a lot of inherent, unresolved and undefined cost, time and quality related factors that can trigger off risks that will affect performance of DB project. Implications of this study to practitioners in the construction is such that the findings of this study can create awareness for stakeholders and construction practitioners of the prominent risks that affect DB projects and this can help in better management of future DB projects in Nigeria and other developing countries. Design and Build procurement in spite of these plethora of risks is still strongly recommended for clients, stakeholders and other practitioners in the construction industry for use in their future projects. This procurement method delivers project faster, within cost and offers good quality of workmanship and product to users of this method.

摘要：Based on the related theories of intercultural competence and extensive analysis of literature,this paper employed questionnaires and interviews to do a research with 200 non-English college students about the general situation of their intercultural competence and the impact on it caused by English films and TV series in Wuhan University of *** findings of the study indicate that non-English college students have relatively good intercultural competence while the deficiency of intercultural knowledge and skill exists;the appreciation of English films and TV series is positively correlated with the four dimensions of non-English college students’intercultural competence,namely intercultural knowledge,attitude,skill and *** on these findings of the research,the author brings up some specific and constructive suggestions on improving non-English college students’intercultural competence with the help of English films and TV series for college English teachers and non-English college students.

摘要：2008年11月末结束的2009网络营销论坛快消分论坛上,国际广告协会全球副会长苏雄提出快消企业进行营销推广时,既要善于利用媒体又要注重整合营销的运用,苏雄的观点一方面强调了媒体选择的重要性,另一方面又折射出巧用营销方法的重要意义。

摘要：The concept of facial impact protection mask for cyclists is proposed in response to increased participation in cycling and the need for injury prevention. The research aims to develop an approach for design of facial impact protection gear to reduce the risk of severe injury. impact test equipment and procedure, face surrogate and protection material performance criteria are developed. Three groups of protective materials – rigid crushable, semi rigid, and soft cushion foams are tested and assessed according to criteria. The criteria are linked to measures of the risk of facial and brain injuries: HIC (Head Injury Criterion), peak deceleration, Face-bone damage and energy absorption. The impact energy is simulated by a drop test using a 48 mm-radius-steel hemispherical impactor, with a weight of 4.63 kg similar to that of headform J specified in AS/NZS standard. The drop-height is 1500 mm, and the linear deceleration force of the impactor is recorded and used to establish the performance of the materials. The HIC is used to predict the risk of brain injury, whereas the developed face surrogate is used to assess facial bone injury. A 5.4 m/s facial impact to the unprotected-face of a cyclist can result in the risk of severe facial bone fracture and mild brain injury. The impact test results for rigid foam protection of 40 mm thickness shows no densification (bottom out) and absorbs the impact energy without damage to the Foam-bone of the face surrogate. At 20 mm thickness, rigid polyurethane foams performed best with Foam-bone damage ranging from 15.1% to 20.5%. Other materials with thicknesses of 20 to 28 mm showed Foam-bone damage between 21.8% and 35.1%. The HIC values ranged from 267 to 522, with memory foams and expanded polystyrene foam having the lowest values. Peak deceleration ranged from 71 g to 105 g for the materials tested. It is concluded that the impact energy can be dissipated by the protection material thereby reducing the risk of severe facial inju

摘要：Multi-objective optimization linked with an urban stormwater model is used in this study to identify cost-effective low impact development (LID) implementation designs for small urbanizing watersheds. The epsilon-Non-Dominated Sorting Genetic Algorithm II (ε-NSGAII) has been coupled with the US Environmental Protection Agency’s Stormwater Management Model (SWMM) to balance the costs and the hydrologic benefits of candidate LID solutions. Our objective in this study is to identify the near-optimal tradeoff between the total LID costs and the total watershed runoff volume constrained by pre-development peak flow rates. This study contributes a detailed analysis of the costs and benefits associated with the use of green roofs, porous pavement, and bioretention basins within a small urbanizing watershed inState College,Pennsylvania. Beyond multi-objective analysis, this paper also contributes improved SWMM representations of LID alternatives and demonstrates their usefulness for screening alternative site layouts for LID technologies.

摘要：In view of features of highway visual impact assessment,the subject and object of highway visual impact assessment have been *** subject is "people" that is observers and the object is landscape visual resources,landscape visual features and landscape visual *** this basis,the paper has proposed the content and model for highway visual impact assessment,further introduced methods for the assessment of highway visual integration and the prediction of visual quality change,and finally put forward measures alleviating highway visual impact from the perspective of preventing,reducing,restoring and *** aims to reduce the influence on landscape visual environment to the minimum level during highway construction.